1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
marusya05 [52]
3 years ago
13

PLEASE HELPPPPP I REALLY NEED ITT

Biology
1 answer:
Savatey [412]3 years ago
8 0

Answer:

I think no.3

Explanation:

please correct me if I'm wrong thanks

You might be interested in
Alan lives along the coast of the Pacific Ocean. He decides to record the difference between the high and low tides along the sh
m_a_m_a [10]

i think its B hope i helped

3 0
3 years ago
Read 2 more answers
34. Enzymes produced by human cells generally work best at temperatures close to​
Tanya [424]

Answer:

37 degrees Celsius

Explanation:

Most enzymes in the human body function best at around 37 degrees Celsius, which is 98.6 degrees Fahrenheit.

3 0
3 years ago
Which statement best discribes cancer cells
Debora [2.8K]

Explanation:

cells which can divide an unlimited number of times by mitosis

6 0
3 years ago
Read 2 more answers
Pls answer its due soon!!!
pickupchik [31]

Explanation:

Meiosis makes genetic variety possible. It makes sperm & egg cells called gametes. Each gamete has 23 chromosomes. To make a diploid cell two gametes (sperm & cell) come together.

During prophase 1 the chromosomes pair up with their homologous pairs so they can transfer their genetic information and exchange it between each other. It makes recombinant chromosomes that influence the genetic diversity between the same people.

Now they are in metaphase 1, the chromosomes are in pairs in the middle of the cell. In anaphase 1, the chromosomes are pulled away by the spindle fibers. Then in telophase 1, there are two formed nuclei. Cytokinesis 1 then splits the cytoplasm.

Now they are in meiosis 2. During prophase 2, there are chromosomes and the spindles are starting to form again without crossing over like in prophase 1. In metaphase 2, chromosomes are going to line up in the middle in both cells unlike during metaphase 1 where the chromosomes were only in pairs.  In anaphase 2, only the chromatids are being pulled away by the spindle fibers. Next in telophase 2 the nuclei reform and the 2 cells are each going to divide into 4 cells. Finally, cytokinesis completely splits the cytoplasm.

Keeping in mind that each sex only produces one type of gamete cell (sperm or eggs), and of the independent assortment and crossing over of chromosomes, the end result will be diversity.

5 0
3 years ago
How are viruses different from bacteria
Butoxors [25]

I believe the correct answer is that viruses are not cells while bacteria are cells with organelles.

<h2>Explanation:</h2><h3>Viruses</h3>

Viruses can simply be explained as genetic materials enclosed in capsules that protects them from the immune system.

Viruses need a host to survive since they lack a mechanism to replicate in meaning they are obligate intracellular organisms.

Reproduction of viruses is through attaching their DNA or RNA into the machinery of the host that replicates them as part of the normal DNA of the cell.

They are the smallest living organisms and cannot be seen microscopically.

They cannot be infected but rather can infect bacteria

They have a capsid that protects the viral material and also contains the receptors attachments that are able to attach to the specific sites which they are infecting. Some of them have an extra layer of a membrane that is called an envelope that further protects the viruses from their hostile environment

They are treated by antiviral medications that affects their replication on normal cells.

They are pathogenic by destroying the cells they enter after successfully replicating their genetic material.

They can either have DNA or RNA but never both.

<h3>Bacteria</h3>

They are cellular prokaryotes with cell organelles that keeps them functional

They can be obligate intracellular organisms or they can survive outside the cell without any problem depending on the particular species of the bacteria since they have cell organelles that can function.

Bacteria reproduce through a process called binary fission where the cell organelles just double up and the cell pinches into 2 different sections with equal distribution of genetic materials forming 2 different cells.

They can be infected by types of viruses called bacteriophages that use the hosts nucleoid to replicate.

They have a cell membrane and a cell wall which encloses the inner contents of the bacteria and also protects the bacteria from the immune system.

They are treated by antibiotics such as β-lactam antibiotics that destroys their cell wall making it porous and the cell eventually dies.

They do not enter the host for reproduction but rather they kill the host through toxins such as toxin A and toxin B

They do not have a nucleus but have the nucleoid that contains the DNA of the bacterium.

Level: High School

Subject: Biology

Topic: The cell

4 0
3 years ago
Read 2 more answers
Other questions:
  • A(n) _____ is a group of cells, with similar functions, that work together. organ tissue unicellular system
    7·2 answers
  • Describe how environmental change can impact ecosystem stability
    13·1 answer
  • In contrast to eukaryotic cells, prokaryotic cells
    14·1 answer
  • This is science.<br> I need help
    5·1 answer
  • Nearly all of the oxygen carried by blood is bound to _____ an iron-containing protein that gives red blood cells their color.
    10·1 answer
  • Why is it important that cell membranes are semipermeable?
    13·1 answer
  • When you exhale onto a cold window pane water vapor in your breath condenses on the glass. Where does the water vapor come from
    12·1 answer
  • Which is false about haploid and diploid cells in fungi?
    12·1 answer
  • Why are some animals protected by law?
    7·1 answer
  • Sometime between 22 and 26 weeks, a. a fetus has a chance of survival outside the womb. b. the external genitals are formed. c.
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!